Yesterday's launch of iOS 5 was also the launch of Newsstand, Apple's solution for buying and updating magazines and periodicals on iPhones and iPads. It's pretty spiffy, and we are there -- in fact, as of this writing we're the No. 6 app on the Top Grossing list. You can buy a single issue for $5.99 or subscribe for just 99 cents per month, which you can cancel anytime. (So there's really no reason to buy that $5.99 single issue, seriously.) More details and screenshots inside...